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Paris brings its residents inside its development projects, in 3D.
How the Urban Planning Department turns multi-billion-point LiDAR surveys into clear public consultations, open to everyone from a browser.
Every major Paris project starts with a massive 3D survey. The real challenge is making residents understand it. With View4Sight, the city turned its point clouds into a tool for dialogue, not an expert-only file.
+80%
more consultation turnout
vs. traditional public meetings
4 j
to publish a shareable survey
down from 3 weeks
8 Md
points explored in-browser
no install, no downsampling
100%
hosted in France
GDPR-compliant, under the city's control
Sector
Local government
Region
Île-de-France
Scope
Major development projects
Products
Visualization · Collaboration · Sovereign hosting
The challenge
Complex projects, plans nobody reads
Major development projects generate colossal 3D surveys: LiDAR point clouds, BIM models, orthophotos. But to present them to the public, teams were stuck with 2D plans and static renders. In meetings, few residents could truly picture the project: consultations dragged on and misunderstandings piled up.
- Point clouds of tens of gigabytes, impossible to share easily
- Residents struggling to picture projects from 2D plans
- Professional software far too heavy for the general public
- Sensitive public data that must stay in France
The solution
One link. The whole project, in the browser.
The city's teams upload their LiDAR surveys and models into View4Sight, with no downsampling. A single link is enough: any resident explores the neighborhood in 3D, from their phone, with nothing to install. Staff annotate, measure and compare development scenarios side by side. And everything stays hosted in France.
Massive point clouds, no compromise
Billions of points loaded as-is, smooth even on a modest laptop.
Share with a single link
Residents explore the project in 3D in their browser, no account, no install.
Data sovereignty
French hosting, GDPR compliance, full access control by the city.
The results
Consultations Parisians make their own
By making projects tangible, the city saw participation climb, discussions sharpen and approval timelines tighten. Residents no longer merely endure projects: they explore them, comment on them, and help shape them.
For the first time, residents step inside the project before it even breaks ground. 3D changed the very nature of consultation: we no longer present a project, we share it.
